#
# Configuration file for the Sphinx documentation builder.
#
# This file does only contain a selection of the most common options. For a
# full list see the documentation:
# http://www.sphinx-doc.org/en/master/config

# -- Path setup --------------------------------------------------------------

# If extensions (or modules to document with autodoc) are in another directory,
# add these directories to sys.path here. If the directory is relative to the
# documentation root, use os.path.abspath to make it absolute, like shown here.
#
# import os
# import sys
# sys.path.insert(0, os.path.abspath('.'))
import sys

from recommonmark.parser import CommonMarkParser
from recommonmark.transform import AutoStructify

# -- Project information -----------------------------------------------------
src_path = "../hivemind"
project = "hivemind"
copyright = "2020, Learning@home & contributors"
author = "Learning@home & contributors"

# The short X.Y version
version = ""
# The full version, including alpha/beta/rc tags
release = "latest"
branch = "master"


# -- General configuration ---------------------------------------------------

# If your documentation needs a minimal Sphinx version, state it here.
#
# needs_sphinx = '1.0'

# Add any Sphinx extension module names here, as strings. They can be
# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
# ones.
extensions = [
    "sphinx.ext.autodoc",
    "sphinx.ext.autosummary",
    "sphinx.ext.doctest",
    "sphinx.ext.mathjax",
    "sphinx.ext.linkcode",  # link to github, see linkcode_resolve() below
    "sphinx.ext.napoleon",  # alternative to numpydoc
]

# see http://stackoverflow.com/q/12206334/562769
numpydoc_show_class_members = False

mathjax_path = "https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"


# Add any paths that contain templates here, relative to this directory.
templates_path = ["_templates"]

# The suffix(es) of source filenames.
# You can specify multiple suffix as a list of string:
#
source_suffix = {".rst": "restructuredtext", ".md": "markdown"}

# The master toctree document.
master_doc = "index"

# The language for content autogenerated by Sphinx. Refer to documentation
# for a list of supported languages.
#
# This is also used if you do content translation via gettext catalogs.
# Usually you set "language" from the command line for these cases.
language = "en"

# List of patterns, relative to source directory, that match files and
# directories to ignore when looking for source files.
# This pattern also affects html_static_path and html_extra_path.
exclude_patterns = ["_build", "Thumbs.db", ".DS_Store"]

# The name of the Pygments (syntax highlighting) style to use.
pygments_style = "sphinx"


# -- Options for HTML output -------------------------------------------------

# The theme to use for HTML and HTML Help pages.  See the documentation for
# a list of builtin themes.
#
html_theme = "sphinx_rtd_theme"

# Theme options are theme-specific and customize the look and feel of a theme
# further.  For a list of options available for each theme, see the
# documentation.
#
html_theme_options = {"collapse_navigation": False}

html_favicon = "_static/favicon.png"

# Add any paths that contain custom static files (such as style sheets) here,
# relative to this directory. They are copied after the builtin static files,
# so a file named "default.css" will overwrite the builtin "default.css".
html_static_path = ["_static"]

# Custom sidebar templates, must be a dictionary that maps document names
# to template names.
#
# The default sidebars (for documents that don't match any pattern) are
# defined by theme itself.  Builtin themes are using these templates by
# default: ``['localtoc.html', 'relations.html', 'sourcelink.html',
# 'searchbox.html']``.
#
# html_sidebars = {}


# -- Options for HTMLHelp output ---------------------------------------------

# Output file base name for HTML help builder.
htmlhelp_basename = "hiveminddoc"


# -- Options for LaTeX output ------------------------------------------------

latex_elements = {
    # The paper size ('letterpaper' or 'a4paper').
    #
    # 'papersize': 'letterpaper',
    # The font size ('10pt', '11pt' or '12pt').
    #
    # 'pointsize': '10pt',
    # Additional stuff for the LaTeX preamble.
    #
    # 'preamble': '',
    # Latex figure (float) alignment
    #
    # 'figure_align': 'htbp',
}

# Grouping the document tree into LaTeX files. List of tuples
# (source start file, target name, title,
#  author, documentclass [howto, manual, or own class]).
latex_documents = [
    (master_doc, "hivemind.tex", "hivemind Documentation", "Learning@home \\& contributors", "manual"),
]


# -- Options for manual page output ------------------------------------------

# One entry per manual page. List of tuples
# (source start file, name, description, authors, manual section).
man_pages = [(master_doc, "hivemind", "hivemind Documentation", [author], 1)]


# -- Options for Texinfo output ----------------------------------------------

# Grouping the document tree into Texinfo files. List of tuples
# (source start file, target name, title, author,
#  dir menu entry, description, category)
texinfo_documents = [
    (
        master_doc,
        "hivemind",
        "hivemind Documentation",
        author,
        "hivemind",
        "One line description of project.",
        "Miscellaneous",
    ),
]


# -- Options for Epub output -------------------------------------------------

# Bibliographic Dublin Core info.
epub_title = project

# The unique identifier of the text. This can be a ISBN number
# or the project homepage.
#
# epub_identifier = ''

# A unique identification for the text.
#
# epub_uid = ''

# A list of files that should not be packed into the epub file.
epub_exclude_files = ["search.html"]


# -- Extension configuration -------------------------------------------------

# -- Options for intersphinx extension ---------------------------------------

# Example configuration for intersphinx: refer to the Python standard library.
intersphinx_mapping = {"https://docs.python.org/": None}

# -- Options for todo extension ----------------------------------------------

# If true, `todo` and `todoList` produce output, else they produce nothing.
todo_include_todos = True


def setup(app):
    app.add_css_file("fix_rtd.css")
    app.add_config_value(
        "recommonmark_config",
        {
            "auto_toc_tree_section": "Contents",
            "enable_math": True,
            "enable_inline_math": True,
            "enable_eval_rst": True,
        },
        True,
    )
    app.add_transform(AutoStructify)
    app.add_source_suffix(".md", "markdown")
    app.add_source_parser(CommonMarkParser)


#  Resolve function for the linkcode extension.


def linkcode_resolve(domain, info):
    def find_source():
        # try to find the file and line number, based on code from numpy:
        # https://github.com/numpy/numpy/blob/master/doc/source/conf.py#L286
        obj = sys.modules[info["module"]]
        for part in info["fullname"].split("."):
            obj = getattr(obj, part)
        import inspect
        import os

        fn = inspect.getsourcefile(obj)
        fn = os.path.relpath(fn, start=os.path.dirname(src_path))
        source, lineno = inspect.getsourcelines(obj)
        return fn, lineno, lineno + len(source) - 1

    if domain != "py" or not info["module"]:
        return None
    try:
        filename = "%s#L%d-L%d" % find_source()
    except Exception:
        filename = info["module"].replace(".", "/") + ".py"

    relative_filename = filename[filename.rindex("hivemind") :]
    return "https://github.com/learning-at-home/hivemind/blob/%s/%s" % (branch, relative_filename)
